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région de production | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jura | Plateau | Préalpes | Alpes | Sud des Alpes | Suisse | ||||||||
âge du peuplement (classes de 40 ans) | stabilité du peuplement | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
pas d'indication | pas d'indication | . | . | . | . | . | . | . | . | . | . | . | . |
critique | . | . | . | . | . | . | . | . | . | . | . | . | |
amoindrie | . | . | . | . | . | . | . | . | . | . | . | . | |
stable | . | . | . | . | . | . | . | . | . | . | . | . | |
total | . | . | . | . | . | . | . | . | . | . | . | . | |
0 (sans boisement) | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 0.0 | . | 8.4 | 8.0 | 0.0 | . | 14.1 | 6.5 | 20.3 | 18.2 | 11.0 | 4.2 | |
amoindrie | 33.7 | 27.4 | 50.4 | 14.5 | 40.4 | 18.4 | 23.8 | 7.9 | 59.3 | 22.1 | 35.2 | 6.4 | |
stable | 66.3 | 27.4 | 41.2 | 14.2 | 59.6 | 18.4 | 62.1 | 9.0 | 20.3 | 18.2 | 53.8 | 6.7 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
1-40 ans | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 3.2 | 1.8 | 3.1 | 1.3 | 8.4 | 2.7 | 5.6 | 1.7 | 6.5 | 3.2 | 5.1 | 0.9 | |
amoindrie | 49.2 | 5.2 | 56.4 | 3.6 | 57.6 | 5.0 | 59.2 | 3.7 | 64.3 | 6.1 | 57.1 | 2.0 | |
stable | 47.6 | 5.2 | 40.4 | 3.6 | 34.0 | 4.8 | 35.2 | 3.5 | 29.2 | 5.8 | 37.9 | 2.0 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
41-80 ans | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 6.5 | 2.8 | 8.5 | 2.4 | 3.7 | 2.1 | 7.8 | 2.0 | 6.6 | 2.0 | 7.0 | 1.0 | |
amoindrie | 44.3 | 5.7 | 51.6 | 4.2 | 64.6 | 5.2 | 57.9 | 3.7 | 68.2 | 3.7 | 58.4 | 1.9 | |
stable | 49.1 | 5.7 | 39.9 | 4.1 | 31.7 | 5.1 | 34.3 | 3.6 | 25.2 | 3.4 | 34.7 | 1.9 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
81-120 ans | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 0.7 | 0.7 | 1.1 | 0.8 | 6.8 | 2.3 | 1.5 | 1.0 | 0.0 | . | 2.1 | 0.6 | |
amoindrie | 36.8 | 4.0 | 43.9 | 3.7 | 53.5 | 4.6 | 51.5 | 4.4 | 53.0 | 8.9 | 46.1 | 2.0 | |
stable | 62.6 | 4.0 | 55.0 | 3.7 | 39.6 | 4.5 | 47.1 | 4.4 | 47.0 | 8.9 | 51.8 | 2.0 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
121-160 ans | pas d'indication | 1.5 | 1.5 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.3 | 0.3 |
critique | 1.7 | 1.6 | 1.7 | 1.7 | 3.7 | 2.1 | 4.1 | 1.8 | 3.4 | 3.4 | 3.1 | 0.9 | |
amoindrie | 34.9 | 5.9 | 37.0 | 6.4 | 56.4 | 5.4 | 47.3 | 4.5 | 41.3 | 9.2 | 45.0 | 2.6 | |
stable | 62.0 | 6.0 | 61.3 | 6.5 | 39.9 | 5.4 | 48.6 | 4.5 | 55.3 | 9.3 | 51.6 | 2.6 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
>160 ans | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 3.5 | 3.4 | 0.0 | . | 0.0 | . | 1.7 | 1.0 | 2.4 | 2.3 | 1.6 | 0.7 | |
amoindrie | 49.5 | 9.5 | 56.0 | 16.6 | 65.3 | 6.2 | 46.0 | 3.7 | 42.5 | 7.4 | 49.6 | 2.8 | |
stable | 47.0 | 9.5 | 44.0 | 16.6 | 34.7 | 6.2 | 52.3 | 3.7 | 55.1 | 7.4 | 48.8 | 2.8 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
peuplements inéquiens | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 3.6 | 1.6 | 1.5 | 1.5 | 3.2 | 1.4 | 0.6 | 0.4 | 0.9 | 0.8 | 1.7 | 0.5 | |
amoindrie | 29.6 | 3.8 | 43.8 | 5.8 | 42.3 | 3.9 | 41.2 | 2.7 | 43.5 | 4.5 | 40.0 | 1.7 | |
stable | 66.8 | 4.0 | 54.7 | 5.8 | 54.5 | 3.9 | 58.2 | 2.7 | 55.6 | 4.5 | 58.2 | 1.7 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | pas d'indication | 0.2 | 0.2 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 0.0 |
critique | 2.9 | 0.7 | 3.5 | 0.7 | 4.6 | 0.8 | 3.5 | 0.5 | 4.1 | 1.0 | 3.7 | 0.3 | |
amoindrie | 38.5 | 2.1 | 48.9 | 1.9 | 54.1 | 2.0 | 48.7 | 1.5 | 55.5 | 2.3 | 49.0 | 0.8 | |
stable | 58.4 | 2.1 | 47.6 | 1.9 | 41.3 | 2.0 | 47.8 | 1.5 | 40.4 | 2.3 | 47.3 | 0.8 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
Table citation
Abegg, M.; Ahles, P.; Allgaier Leuch, B.; Cioldi, F.; Didion, M.; Düggelin, C.; Fischer, C.; Herold, A.; Meile, R.; Rohner, B.; Rösler, E.; Speich, S.; Temperli, C.; Traub, B.,
2023: Swiss national forest inventory - Result table No. 1380509. Birmensdorf, Swiss Federal Research Institute WSL